AIR loSS

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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elitesniper
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Tue Nov 13, 2007 7:33 pm

um sorry thsi i a nob question but if u compress air into ur gun chamber does every gun lose its pressure slowly or dus the air stay in for ever?( until u let it out )
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Pilgrimman
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Tue Nov 13, 2007 7:35 pm

If the gun has a perfect seal, then it will stay pressurized until one of the components fails due to age. If you are losing pressure at a detectable rate, you have a leak.
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Hailfire753
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Tue Nov 13, 2007 7:35 pm

If the gun does not have any leaks, of develop one from prolonged pressure, the air will "stay in for ever".

EDIT: U beat me!
Last edited by Hailfire753 on Tue Nov 13, 2007 7:36 pm, edited 1 time in total.
UPDATED MARCH '08
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potatoflinger
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Tue Nov 13, 2007 7:36 pm

Well, if the gun is sealed properly, the air should stay in it, but if you have a leak, the air is gonna come out.
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c19o
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Tue Nov 13, 2007 7:37 pm

If you make sure you seal every thread with teflon tape or some other sealant and glue everything properly your gun should hold air until your fire it.
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frankrede
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Tue Nov 13, 2007 7:44 pm

Well I filled one of my bike tires and It still is full of air 2 months later?
As long as your chamber is sealed, it will hold your pressure as long as you need it too.
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elitesniper
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Tue Nov 13, 2007 7:45 pm

welli can hear or see any leeks under waterbut it loses a tiney amout of air like i mean really tiney its like a pin head movement on the gauge u can barely see the hand move but i saw it move a tiney bit VERY TINY is that ok?
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c19o
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Tue Nov 13, 2007 7:49 pm

Yea thats alright
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elitesniper
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Tue Nov 13, 2007 7:51 pm

oH i found the culpret i didnt tigten the hose clamp on my barb Lol
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Hubb
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Tue Nov 13, 2007 7:52 pm

You should be fine with this type of loss. I don't see any reason you would want to leave a launcher pressurized for a very prolonged period of time (such as overnight or something). You do have a leak somewhere but it may be difficult to find.

There is a commercial product available that one can use. It will bubble (sort of like submerging the launcher in water) where the leak is. You could also skip the whole "I'm gonna go buy me something that I already have" idea and just use detergent and water for the same purpose.
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elitesniper
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Tue Nov 13, 2007 8:06 pm

a saw at auto zone here was this uv leek detector or sumthing u think that would work?
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Zen///
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Tue Nov 13, 2007 8:09 pm

Do you really want to spend 50$+ for a "leek" detector?
Just use water and soap it's way more cheap then a "leek" detector.

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Hubb
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Tue Nov 13, 2007 8:09 pm

I don't know what uv leek detector is but I thought of sun rays :lol:

If it is designed to find air leaks, it will work. But you should save your money and use detergent and water. It works.
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elitesniper
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Tue Nov 13, 2007 8:10 pm

no it was like 12 i think sorry for spelling errors lol
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Zen///
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Tue Nov 13, 2007 8:12 pm

elitesniper wrote:welli can hear or see any leeks under waterbut it loses a tiney amout of air like i mean really tiney its like a pin head movement on the gauge u can barely see the hand move but i saw it move a tiney bit VERY TINY is that ok?
If you can see the leak already why don't you fix it?
When you fill a car tire the air stays in for a LONG time (at 150psi) And why would you need to keep the air in "forever"?
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